}

// Standard errors.
var (
	ErrNotImplemented     = errors.New("function not implemented")
	ErrAccessTokenExpired = errors.New("access_token expired or unauthorized")
)

// Provider implements identity provider specific admin operations, such as
// looking up users, fetching additional attributes etc.
type Provider interface {
	LoginWithUser(username, password string) error

	}

	if tx.Error != nil {
		t.Errorf("Should not raise any error, but got %v", tx.Error)
	}

	AssertObjEqual(t, result, data, "Name", "Gender", "Age")

	if err := DB.Where(data).Assign(ScannerValuerStruct{Age: sql.NullInt64{Int64: 18, Valid: true}}).FirstOrCreate(&result).Error; err != nil {
		t.Errorf("Should not raise any error, but got %v", err)
	}

	if result.Age.Int64 != 18 {

class JsonApiResponse(JSONResponse):
    media_type = "application/vnd.api+json"


class Error(BaseModel):
    status: str
    title: str


class JsonApiError(BaseModel):
    errors: list[Error]


@app.get(
    "/a",
    status_code=204,
    response_class=JsonApiResponse,
    responses={500: {"description": "Error", "model": JsonApiError}},
)
async def a():
    pass

	user := *GetUser("update-belongs-to", Config{})

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	user.Company = Company{Name: "company-belongs-to-association"}
	user.Manager = &User{Name: "manager-belongs-to-association"}
	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user2 User

	if err := DB.Where("id = ?", u1.ID).First(&newUser).Error; err != nil {
		t.Fatalf("errors happened when query: %v", err)
	} else {
		CheckUser(t, newUser, u1)
	}

	type user struct {
		ID   int `gorm:"primaryKey;->:false"`
		Name string
		Age  int
	}

	var u2 user
	if results := DB.Create(&u2); results.Error != nil {
		t.Fatalf("errors happened when create: %v", results.Error)
	} else if results.RowsAffected != 1 {

	}
}

const unwrapErrsDepth = 3

// unwrapErrs upto the point where errors.Unwrap(err) returns nil
func unwrapErrs(err error) (leafErr error) {
	uerr := errors.Unwrap(err)
	depth := 1
	for uerr != nil {
		// Save the current `uerr`
		leafErr = uerr
		// continue to look for leaf errors underneath
		uerr = errors.Unwrap(leafErr)
		depth++
		if depth == unwrapErrsDepth {
			// If we have reached enough depth we

	}

	if DB.Model(&User{}).Select("age").Where("name = ?", user.Name).Scan(&age).Error != nil || age != user.Age {
		t.Errorf("Age soft deleted record, expects: %v, got: %v", 0, age)
	}

	if err := DB.Delete(&user).Error; err != nil {
		t.Fatalf("No error should happen when soft delete user, but got %v", err)
	}

	if sql.NullTime(user.DeletedAt).Time.IsZero() {
		t.Fatalf("user's deleted at is zero")
	}

func (c *StandardClaims) UnmarshalJSON(b []byte) (err error) {
	return jsonparser.ObjectEach(b, func(key []byte, value []byte, dataType jsonparser.ValueType, _ int) error {
		if len(key) == 0 {
			return nil
		}
		switch key[0] {
		case 'a':
			if string(key) == "accessKey" {
				if dataType != jsonparser.String {
					return errors.New("accessKey: Expected string")
				}

	err := work.Run(func() error {
		time.Sleep(600 * time.Millisecond)
		return nil
	})
	if err != context.DeadlineExceeded {
		t.Error("DeadlineWorker shouldn't be successful - should return context.DeadlineExceeded")
	}

	err = work.Run(func() error {
		time.Sleep(450 * time.Millisecond)
		return nil
	})
	if err != nil {
		t.Error("DeadlineWorker should succeed")
	}
}

}

// TransferError will catch network errors during transfer.
// When TransferError() is called Close() will also
// be called, so we do not need to Wait() here.
func (w *writerAt) TransferError(err error) {
	_ = w.w.CloseWithError(err)
	_ = w.r.CloseWithError(err)
	w.err = err
}

func (w *writerAt) Close() (err error) {
	switch {
	case len(w.buffer) > 0: